Pull-rod clamp.



W/f/VESSES: f4 INVENTOI? 0 Z2 /l/e/ /'//9.

ITOHNEY Patented Sept. 23, 1913.

- or the like,

UNITE snares MISSbURI, ASSIGNQR TO THE KANSAS CITY on Kansas CITY, or SHEFFIELD, MIS

PULL-R0 DANIEL 1). NEVILLE, :eom' & now 00.,

Application filed September Specification of Letters Patent.

PATENT @llFICE.

SQURI, A CORPORATION OF MISSOURI. I) CLAMP.

Patented Sept. 2a, 191;. Serial No. 722,520.

To all whom it may concern Be itknown that I, DANIEL D, NEVILLE, a citizen or the United States, residing at Kansas City, in the county of Jackson and State of Missouri, have invented certain new and useful Improvements in Pull-Rod Clamps; and I do declare thefollowing to be a full,-clear, and exact description of the invention, such as will enable others skilled in the art to which it appertainsto make and use the same, reference being had to the accompanying drawings, and to the letters and figures of reference marked thereon, which form a part of this specification.

y invention relates to pull rod clamps, and more particularly to a clamp for connecting the independent members of a sectional pitman, or pump rod, so that a pump, located at a distance from its power may be operated Without lost motion or pounding due to loose connection of the rod sections.

It is the principal object of the invention to provide a clump of this character of sufficient length to overlie the ends of abutting" rod sections sutliciently to provide a sub stantial bearing, surface against the sections, and having means for inclosing heads on the ends of the sections, but being of such con struction that the Weight of the clamp is limited to a minimum Without sacrificing its strength. In accomplishing these objects, I have provided the improved details of structure hereinafter teseribed and illustrated in the accompanying drawings, whereinz- Figure- I is a perspective view of a clamp constructed according to my invention, showing" its application to a sectional rod. Fig. II is an end view of same. Fig. III is a central longitudinal section illustrating the seat of the rod heads in the clamp;

Referring more in detail to the parts The body of the clamp is formed in two pieces, each comprising a central portion 1, of greatest diameter, having a dome 2 rising therefrom, and provided with a flat top Extending longitudinally from the ends of and merging into the dome 2 is a, barrel portion t, the ends of which are reduced in diameter to form the end channel edges of the barrel and channels merging into a radial rib 6 which extends throughout the length of the clampv collars 5, the I the dome 2 is a end collars 5 to the top of the clamp caved at their inner faces to provide channels for receiving the ends of the pull rods, and the barrels are concaved to form a recess back of the collars for receiving the heads of the pull rods and also serving to further reduce the amount of material in the clamp and lighten some.

Each of the clamp members has an aperture 8 opening from the top of its dome through the barrel to apertures being inclined inwardly. and out- Wardl from the outer face of the dome in order 0 still further reduce the material and provide for movement of a bolt so that when a part of the clam members is in place, as will presently he described, a bolt may he fectly registering apertures.

9 designates pull rod sections, each of which has an end projected through the collar of a clamp, and provided with a head [0 which seats within the barrel recess and engages the shoulder 1.1 formed by the re duction in diameter between the barrel .1.- and collar 5, The two clamp members are held in place, and to'tho ends of the pump rod sections. by a bolt 12 having a head 13 hearing against the dome of one of the members, and a nut 14 hearingagainst the dome of the opposite member, so that when the nut is tightened the u'icnllmrs are drawn together and tight ened on the ends of? the rod. The clamp memlwrs are made to it rods of known di ameter, and in forming the collars the concaved recesses are made o'l lcss diameter than the rod, so that when the clamp members are placed over the ends of the rod sections the side ribs 6 will not touch each other but will be spaced apart, as illustrated in the drawing, so that when the members are tightened together the collars will bind against the rod and hold some firmly to pre vent the sections from slipping, in the clamp and couserpiont pounding of surlr sections.

In using the clamp, the hooded rod sections are laid from the pmver to the pump, or driven lllOll'lllOl', and the clamps spaced sub portions. The collar portions 5 are conmore readily projected through the imper- Extending from the center of each o the the barrel (recess, the

ders.

through the paired members and tightened over the ends of adjacentlrods, so that the rod heads will fit within the barrel recesses and abut snugly against the collar shoul- The clamp bolts are then projected on the .rods by the turning on the nuts, it

being apparent that as the collar ooncaves.

are of less diameter than the rod sections that the side flanges 6 will not meet and that the sections will be clamped firmly betwee1 said collars. a

'As the rods are usually combined with' themotor-and-pump, so thatthe orking strokegof-the pump occurs While the rod, is being pulled and not when it is being pushed' the heads of the rod sections will pull against collar shoulders so that'the frictional grip of the clampagainst such sections is not required to carry the burden of the clamp as described, the center and side.

the work? It is also apparent that byconstructing ribs will strengthen the members so that considerable material may be eliminated without weakening the clamp, thereby effeeling a saving not only in the material alone, but also 1n carrying charges.

Having thus described my invention, what I claim as new therein and desire to secure by Letters Patent, is':'

. '1. The combination with a longitudinally split clamp having transverse apertures and comprising body and end collar members of different diameter, forming shoulders at the emme ends of the body portions, of a bolt'extending through said apertures and through the interiorof the body, whereby the split members are held. together, and separate pull rods lying within opposite collar members, and having heads located within the clamp body a'nd bearing agains the collar shoulders; with the inner ends of said heads spaced from the connectin bolt.

2. The combination Wit a split clamp having a central portion and end collars of diflerent diameters, forming shoulders, and having transverse apertures, tapered outwardly from" the interior of the body, of a bolt extending through said apertures, and

separate'pull rods lying within the end 001- lars and having heads bearing against said shoulders, and s d f the bolt, forth! P p set forth. I

3. The combination with clamp members, each comprising an-mterxor recess and end channels and havinga central transverse and'outwa'rdly tapered aperture, of a bolt adapted for projection through the tapered channels whereby lateral movement of the clamp on the bolt is afforded, substantiallyas set forth. 7

In test mony whereof I aflix my signature in presenceoi two-Witnesses.

. DANIEL D. NEvI LE Witnesses ,SAML E. SEALEs, HARRY B. BEVAN. 

